CN220891035U - Planetary gear reduction box and motor vehicle - Google Patents
Planetary gear reduction box and motor vehicle Download PDFInfo
- Publication number
- CN220891035U CN220891035U CN202322627024.7U CN202322627024U CN220891035U CN 220891035 U CN220891035 U CN 220891035U CN 202322627024 U CN202322627024 U CN 202322627024U CN 220891035 U CN220891035 U CN 220891035U
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- oil
- planetary gear
- planet carrier
- oil collecting
- oil guide
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- 239000003921 oil Substances 0.000 claims abstract description 228
- 239000010687 lubricating oil Substances 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000314 lubricant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of lubrication of reduction boxes and discloses a planetary gear reduction box and a motor vehicle, wherein the planetary gear reduction box comprises a shell, a gear ring arranged on the shell, a planet carrier rotationally connected with the shell, a sun gear arranged on the planet carrier and coaxially rotated with the planet carrier, and a planetary gear set rotationally connected with the planet carrier and meshed with the gear ring and the sun gear respectively, and the planet carrier is axially communicated with a mounting hole; the planetary gear reduction box further comprises an oil guide assembly, the oil guide assembly is arranged on the planet carrier and rotates synchronously with the planet carrier, the oil guide assembly comprises an oil guide pipe and an oil outlet hole penetrating through the side wall of the oil guide pipe, the oil guide pipe is arranged in the mounting hole, and the oil outlet hole is used for discharging lubricating oil to the planetary gear set; the lubrication effect of the gear meshing area of the planetary gear reduction box is improved.
Description
Technical Field
The utility model relates to the technical field of lubrication of speed reducers, in particular to a planetary gear speed reduction box and a motor vehicle.
Background
With the wider and wider application of new energy sources, new energy source motor vehicles such as electric motorcycles, electric automobiles and the like are becoming perfect from one step to another. The new energy motor vehicle integrates a driving motor, a planetary gear reducer, a motor input shaft, an output shaft and the like to form a centralized motor driving system. The driving motor can drive wheels through the motor input shaft, the reduction gearbox and the output shaft, and the planetary gear reduction gearbox plays a role in reducing the rotation speed and increasing the torque provided by the driving motor.
The planetary gear reduction box with the conventional structure comprises a shell, a planet carrier, a planet wheel, a sun wheel, a gear ring, a differential gear and the like, wherein the gear ring is fixed on the shell, the planet gear part and the differential gear part are arranged on the planet carrier and rotate along with the planet carrier, the planet gear part rotates around the sun wheel, and the sun wheel is connected with an input shaft of a driving motor to serve as a driving wheel, so that the meshing positions of the planet wheel, the sun wheel and the gear ring can be continuously changed. The planet wheel and the sun wheel and the planet wheel and the gear ring are generally lubricated by adopting an oil stirring splash lubrication method, namely oil drops or oil mist are formed by stirring and splashing through a moving part to lubricate a friction surface, but because the structure in the reduction gearbox is compact, gaps between the structures are small, the oil drops or the oil mist are difficult to pass through the gaps, and therefore, the gear meshing area is difficult to lubricate accurately, and the lubrication effect is poor.
Disclosure of utility model
The utility model mainly aims to provide a planetary gear reduction box, which aims to improve the lubrication effect on a gear meshing area.
In order to achieve the above object, the present utility model provides a planetary gear reduction gearbox, including a housing, a gear ring provided in the housing, a planet carrier rotatably connected to the housing, a sun gear provided in the planet carrier and coaxially rotated with the planet carrier, and a planetary gear set rotatably connected to the planet carrier and respectively engaged with the gear ring and the sun gear, wherein the planet carrier is formed with a mounting hole along an axial direction thereof;
The planetary gear reduction box further comprises an oil guide assembly, the oil guide assembly is arranged on the planet carrier and rotates synchronously with the planet carrier, the oil guide assembly comprises an oil guide pipe and an oil outlet hole penetrating through the side wall of the oil guide pipe, the oil guide pipe is arranged in the mounting hole, and the oil outlet hole is used for discharging lubricating oil to the planetary gear set.
Optionally, the oil guide assembly further comprises an oil collecting disc, the oil collecting disc is mounted on the planet carrier and rotates synchronously with the planet carrier, the bottom of the oil collecting disc penetrates through the oil collecting disc, an oil collecting hole close to the inner peripheral wall of the oil collecting disc is formed in the bottom of the oil collecting disc, and the oil collecting hole corresponds to the oil guide tube.
Optionally, the oil guiding assembly further comprises an oil guiding pipe, the oil guiding pipe is arranged at the bottom of the oil collecting disc, one end of the oil guiding pipe is connected with the oil collecting hole, and the other end of the oil guiding pipe is positioned in the oil guiding pipe.
Optionally, the planetary gear reduction box further comprises an oil inlet structure arranged on the shell, wherein an oil inlet channel is formed on the oil inlet structure, and the oil collecting disc is provided with an oil collecting flange;
The oil collecting flange extends from the peripheral wall of the oil collecting disc to the middle part of the end edge of one end of the disc bottom of the oil collecting disc, the inner periphery of the oil collecting flange is arranged at intervals with the input shaft of the driving motor for driving the sun wheel to rotate in the rotating radius direction of the planet carrier, and the oil discharge port of the oil inlet channel corresponds to the intervals between the oil collecting flange and the input shaft of the driving motor in the axial direction of the planet carrier.
Optionally, the planet carrier is provided with an annular mounting table, the annular mounting table comprises an annular bulge and an annular step mounting surface, and the mounting hole penetrates through the annular step mounting surface and one end of the mounting hole is formed on the annular step mounting surface; the oil collecting disc is arranged on the annular step mounting surface, and the annular bulge limits the oil collecting disc on the step mounting surface.
Optionally, the direction of the oil outlet hole is tangential to the rotation direction of the planet carrier.
Optionally, the planet carrier is formed with a plurality of the mounting holes, and the oil guide assembly comprises a plurality of oil guide pipes;
each mounting hole is arranged at intervals along the circumferential direction of the planet carrier, and one oil guide pipe is correspondingly arranged in one mounting hole.
Optionally, an identification part is formed at one end of the oil guide pipe, and the identification part is arranged corresponding to the oil outlet in the length direction of the oil guide pipe.
Optionally, the oil guide pipe is formed with at least two oil outlet holes spaced apart in the length direction, and the pore sizes of the two oil outlet holes are unequal.
The utility model also provides a motor vehicle which comprises the planetary gear reducer.
According to the technical scheme, as the planet carrier rotates, the oil guide pipe and the planet carrier synchronously rotate, lubricating oil in the oil guide pipe is continuously discharged to the planetary gear set from the oil outlet under the action of centrifugal force, each tooth of the planetary gear can be effectively lubricated as the planetary gear in the planetary gear set rotates and the lubricating oil is continuously discharged, the planetary gear set is continuously meshed with the gear ring and the sun gear, so that lubrication of meshing areas between the planetary gear and the sun gear and between the planetary gear and the gear ring is realized, lubrication in the lubrication process is accurate, lubrication can be continuously carried out, and the lubrication effect of the gear meshing area of the planetary gear reduction box is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a planetary gear reducer according to the present utility model;
FIG. 2 is a schematic structural view of the first part of the structure in FIG. 1;
FIG. 3 is a schematic illustration of the lubrication direction of the embodiment of FIG. 1;
FIG. 4 is a schematic structural view of the second part of the structure in FIG. 1;
FIG. 5 is a schematic structural view of the third part of the structure in FIG. 1;
Fig. 6 is a schematic structural diagram of the fourth part of the structure in fig. 1.
Reference numerals illustrate:
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The present utility model proposes a planetary gear reducer 1000, and fig. 1 to 6 are an embodiment of the present utility model.
In the embodiment of the present utility model, as shown in fig. 1 to 6, the planetary gear reduction box 1000 includes a housing 1, a ring gear 2 provided in the housing 1, a carrier 3 rotatably connected to the housing 1, a sun gear 4 provided in the carrier 3 and coaxially rotated with the carrier 3, and a planetary gear set 5 rotatably connected to the carrier 3 and respectively engaged with the ring gear 2 and the sun gear 4, the carrier 3 being formed with a mounting hole 31 penetrating in an axial direction thereof; the planetary gear reduction box 1000 further comprises an oil guiding assembly 7, the oil guiding assembly 7 is arranged on the planet carrier 3 and rotates synchronously with the planet carrier 3, the oil guiding assembly 7 comprises an oil guiding pipe 71 and an oil outlet 711 penetrating through the side wall of the oil guiding pipe 71, the oil guiding pipe 71 is installed in the installation hole 31, and the oil outlet 711 is used for discharging lubricating oil to the planetary gear set 5. In the technical scheme of the utility model, as the planet carrier 3 rotates, the oil guide pipe 71 rotates synchronously with the planet carrier 3, the lubricating oil in the oil guide pipe 71 is continuously discharged from the oil outlet 711 to the planetary gear set 5 under the action of centrifugal force, as the rotation of the planet gears in the planetary gear set proceeds and the lubricating oil is continuously discharged, each tooth of the planet gears can be effectively lubricated, and the planetary gear set is continuously meshed with the gear ring 2 and the sun gear 4, so that the lubrication of the meshing areas between the planet gears and the sun gear 4 and between the planet gears and the gear ring 2 is realized, the lubrication process is accurate, the lubrication can be continuously performed, and the lubrication effect of the gear meshing area of the planetary gear reduction box 1000 is improved.
The planetary gear set 5 includes at least two stages of planetary gears, wherein one stage of planetary gear is meshed with the sun gear 4, wherein the other stage of planetary gear is meshed with the ring gear 2, in order to achieve a better lubrication effect on at least two stages of planetary gears in the planetary gear set 5, as shown in fig. 1,2 and 6, at least two groups of oil outlets 711 are formed in the length direction of the oil guide pipe 71, the number of groups of the oil outlets 711 corresponds to the number of stages of the planetary gears, so as to lubricate each stage of planetary gear, and each group of oil outlets 711 includes at least one oil outlet 711.
Further, since the parameters of the planetary gears of different stages are different, the required amount of lubrication oil is different when the planetary gears are meshed with the ring gear 2 or the sun gear 4, in this embodiment, as shown in fig. 6, two groups of oil outlets 711 are provided at different positions in the length direction of the oil guide pipe 71, the sizes of the apertures of the oil outlets 711 in each group are not equal, the aperture of the oil outlet 711 determines the efficiency of the lubrication oil discharge, that is, the amount of lubrication oil discharged per unit time, and the specific aperture of the oil outlet 711 is determined according to the lubrication oil amount requirement of the planetary gears of each stage in specific cases.
In general, as long as the direction of the oil outlet 711 is not the same as the rotation radius direction of the planetary gear, at least a part of the lubricating oil discharged from the oil outlet 711 by the oil guide pipe 71 can lubricate the planetary gear. In this embodiment, as shown in fig. 3, in order to improve the lubrication efficiency of the lubricant, it is ensured that the lubricant in the lubricant pipe 71 can be more accurately discharged to the planet gear, the direction of the oil outlet 711 is tangential to the rotation direction of the planet carrier 3, and the oil outlet 711 is arranged in the direction, so that not only the discharge efficiency of the lubricant is high, but also the lubricant can be maximally attached to the novel gear after being discharged, compared with other arrangement angles, and the lubrication effect is best. The direction indicated by the arrow in fig. 3 is the oil outlet direction of the oil outlet hole when the planet carrier rotates anticlockwise.
In order to ensure that the direction of the oil guide hole can be determined when the oil guide pipe 71 is installed in the installation hole 31 of the planet carrier 3, and that the direction of the oil outlet hole 711 of the oil guide pipe 71 is tangential to the rotation direction of the planet carrier 3, in one embodiment, as shown in fig. 6, an identification part 712 is formed at one end of the oil guide pipe 71, and the identification part 712 is disposed corresponding to the oil outlet hole 711 in the length direction of the oil guide pipe 71, that is, the position of the identification part 712 in the circumferential direction of the oil guide pipe 71 represents the direction of the oil outlet hole 711. The specific form of the marking portion 712 is not limited, and in this embodiment, in order to facilitate the molding of the marking portion 712 on the oil conduit 71, the marking portion 712 is provided as a notch.
In this embodiment, in consideration of the situation that the gears are reversed during the practical application, in order to ensure that the lubrication effect is better in both the forward and reverse situations, the oil guide pipe 71 is provided with the oil outlet 711 at both ends of the planet carrier 3 in the rotation tangential direction.
In general, each stage of planetary gear may include a plurality of planetary gears arranged along the circumferential direction of the planet carrier 3, in this embodiment, each stage of planetary gear includes three planetary gears, the planet carrier 3 is formed with a plurality of mounting holes 31, the oil guiding assembly 7 includes a plurality of oil guiding pipes 71, each mounting hole 31 is disposed at intervals along the axial direction of the planet carrier 3, each oil guiding pipe 71 is correspondingly mounted in one mounting hole 31, and then, when the planet carrier 3 rotates, each oil guiding pipe 71 corresponds to one planetary gear, so that lubricating oil is accurately discharged through the oil outlet 711 of each oil guiding pipe 71 corresponding to one planetary gear for lubrication, thereby further improving the accuracy of lubrication.
As shown in fig. 1 and 2, in addition to the above lubrication of the planetary gear set, the lubricant that is not discharged from the oil outlet 711 in the oil guide pipe 71 is discharged from the other end of the oil guide pipe 71 opposite to the oil inlet, and the other end corresponds to other structures to be lubricated in the planetary gear reduction gearbox 1000, and the other structures to be lubricated may be differential gear structures 6, etc., so as to improve the utilization rate of the lubricant to the greatest extent, and simultaneously lubricate the meshing area with more inward reduction of the planetary gears. Only the mounting position of the differential gear structure 6 is illustrated in the figure, but the specific structure thereof is shown.
In order to ensure that the lubricating oil is accurately collected into the oil guide pipe 71, in one embodiment, as shown in fig. 1, 2 and 5, the oil guide assembly 7 further includes an oil collecting disc 72, the oil collecting disc 72 is mounted on the planet carrier 3 and rotates synchronously with the planet carrier 3, and a disc bottom of the oil collecting disc 72 is arranged in a penetrating manner so as to be capable of being mounted on the planet carrier 3 and avoiding the input shaft of the driving motor from extending into the planet carrier 3; the bottom of the oil collecting disc 72 is provided with an oil collecting hole 721 near the inner peripheral wall of the oil collecting disc 72, the oil collecting hole 721 is arranged corresponding to the oil guide tube 71, during the rotation of the planet carrier 3, the lubricating oil gathers towards the edge of the oil collecting disc 72 and is blocked by the inner peripheral wall of the oil collecting disc 72 under the influence of centrifugal force, and the oil collecting hole 721 is arranged near the inner peripheral wall of the oil collecting disc 72, namely, when the planet carrier 3 rotates, the lubricating oil in the oil collecting disc 72 can be discharged into the oil guide tube 71 through the oil collecting hole 721.
In order to ensure that the oil collecting hole 721 can accurately and stably convey the lubricating oil into the oil guide pipe 71, in an embodiment, the oil guide assembly 7 further comprises an outlet pipe 722, the outlet pipe 722 is arranged at the bottom of the oil collecting disc 72, one end of the outlet pipe 722 is connected with the oil collecting hole 721, the other end of the outlet pipe 722 is positioned in the oil guide pipe 71, that is, the outlet pipe 722 is added between the oil collecting hole 721 and the oil guide hole, one end of the outlet pipe 722 is connected with the oil collecting hole 721 to lead out the lubricating oil in the oil collecting disc 72, and the other end of the outlet pipe 722 extends into the oil guide pipe 71, so that the lubricating oil led out from the oil collecting disc 72 can be accurately led into the guide pipe, and loss of the lubricating oil due to scattering and leakage in the transferring process of the lubricating oil from the oil collecting disc 72 to the guide pipe can be avoided.
To prevent the lubricant from being thrown out from the end of the oil collecting disc 72 away from the disc bottom under the high-speed rotation of the planet carrier 3, in an embodiment, as shown in fig. 5, the oil collecting disc 72 is provided with an oil collecting flange 723, the oil collecting flange 723 extends from the peripheral wall of the oil collecting disc 72 towards the end edge of the end of the disc bottom to the middle part, so as to prevent the lubricant from being thrown out, further, in order to accurately supply the lubricant into the oil collecting disc 72, the planet gear reduction box 1000 further comprises an oil inlet structure 8 arranged in the shell 1, the oil inlet structure 8 is formed with an oil inlet channel 81, and in the rotation radius direction of the planet carrier 3, the inner periphery of the oil collecting flange 723 is arranged at intervals with a driving motor input shaft for driving the sun gear 4 to rotate, and an oil outlet of the oil inlet channel 81 corresponds to the interval between the oil collecting flange 723 and the driving motor input shaft in the axial direction of the planet carrier 3 so as to accurately supply the lubricant into the oil collecting disc 72. When the oil drain port of the oil feed passage 81 discharges the lubricating oil, at least part of the lubricating oil is discharged to the above-mentioned input shaft, and since the oil collecting pan 72 is positionally surrounded on the circumferential side of the input shaft, the lubricating oil falls into the oil collecting pan 72 after colliding with the input shaft.
To achieve the mounting of the oil collecting pan 72 on the planet carrier 3, in an embodiment, the planet carrier 3 has an annular mounting table 32, the annular mounting table 32 includes an annular protrusion 321 and an annular step mounting surface 322, the mounting hole 31 penetrates the annular step mounting surface 322 and one end thereof is formed on the annular step mounting surface 322, so that an outlet pipe 722 provided on the oil collecting pan 72 can be inserted into the flow guide pipe mounted in the mounting hole 31; the oil collecting disc 72 is mounted on the annular step mounting surface 322, and the annular protrusion 321 limits the oil collecting disc 72 on the step mounting surface. Wherein the fixing between the oil collecting disc 72 and the annular mounting table 32 includes a limit in the rotation direction of the planet carrier 3 and a limit of the oil collecting disc 72 in the annular step surface in the axial direction of the planet carrier 3; the former can be limited by the eduction tube 722 arranged on the oil collecting disc 72, and the latter can be arranged on the annular bulge 321 and can be movably pressed on an oil collecting baffle 723 of the oil collecting disc 72; or a key and a key groove which are matched with each other are formed between the oil collecting disc 72 and the annular protrusion 321.
The utility model also provides a motor vehicle, which comprises the planetary gear reduction box 1000, and the specific structure of the planetary gear reduction box 1000 refers to the above embodiments, and because the motor vehicle adopts all the technical schemes of all the embodiments, the motor vehicle at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. The planetary gear reduction box comprises a shell, a gear ring arranged on the shell, a planet carrier rotationally connected with the shell, a sun gear arranged on the planet carrier and coaxially rotated with the planet carrier, and a planetary gear set rotationally connected with the planet carrier and respectively meshed with the gear ring and the sun gear, and is characterized in that the planet carrier is axially penetrated and formed with a mounting hole;
The planetary gear reduction box further comprises an oil guide assembly, the oil guide assembly is arranged on the planet carrier and rotates synchronously with the planet carrier, the oil guide assembly comprises an oil guide pipe and an oil outlet hole penetrating through the side wall of the oil guide pipe, the oil guide pipe is arranged in the mounting hole, and the oil outlet hole is used for discharging lubricating oil to the planetary gear set.
2. The planetary gear reducer of claim 1, wherein the oil guide assembly further comprises an oil collecting disc, the oil collecting disc is mounted on the planet carrier and rotates synchronously with the planet carrier, a disc bottom of the oil collecting disc penetrates through the oil collecting disc, an oil collecting hole close to the inner peripheral wall of the oil collecting disc is formed in the disc bottom of the oil collecting disc, and the oil collecting hole is arranged corresponding to the oil guide tube.
3. The planetary gear reduction box according to claim 2, wherein the oil guiding assembly further comprises an oil guiding pipe, the oil guiding pipe is arranged at a bottom of the oil collecting disc, one end of the oil guiding pipe is connected with the oil collecting hole, and the other end of the oil guiding pipe is arranged in the oil guiding pipe.
4. The planetary gear reduction box according to claim 2, further comprising an oil inlet structure provided to the housing, the oil inlet structure being formed with an oil inlet passage, the oil collecting pan having an oil collecting flange;
The oil collecting flange extends from the peripheral wall of the oil collecting disc to the middle part of the end edge of one end of the disc bottom of the oil collecting disc, the inner periphery of the oil collecting flange is arranged at intervals with the input shaft of the driving motor for driving the sun wheel to rotate in the rotating radius direction of the planet carrier, and the oil discharge port of the oil inlet channel corresponds to the intervals between the oil collecting flange and the input shaft of the driving motor in the axial direction of the planet carrier.
5. A planetary gear reduction box according to claim 2, wherein the planet carrier has an annular mounting table including an annular projection and an annular step mounting surface, the mounting hole penetrating the annular step mounting surface and having one end formed in the annular step mounting surface; the oil collecting disc is arranged on the annular step mounting surface, and the annular bulge limits the oil collecting disc on the step mounting surface.
6. The planetary gear reducer according to any one of claims 1 to 5, wherein a direction of the oil outlet hole is tangential to a rotation direction of the carrier.
7. The planetary gear reduction box according to any one of claims 1 to 5, wherein the carrier is formed with a plurality of the mounting holes, and the oil guide assembly includes a plurality of oil guide pipes;
each mounting hole is arranged at intervals along the circumferential direction of the planet carrier, and one oil guide pipe is correspondingly arranged in one mounting hole.
8. The planetary gear reducer according to any one of claims 1 to 5, wherein an end of the oil guide pipe is formed with a marking portion that is provided corresponding to the oil outlet hole in a length direction of the oil guide pipe.
9. The planetary gear reducer according to any one of claims 1 to 5, wherein the oil guide pipe is formed with at least two oil outlet holes spaced apart in a longitudinal direction thereof, and the oil outlet holes are unequal in pore size.
10. A motor vehicle comprising a planetary gear reduction box according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322627024.7U CN220891035U (en) | 2023-09-26 | 2023-09-26 | Planetary gear reduction box and motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322627024.7U CN220891035U (en) | 2023-09-26 | 2023-09-26 | Planetary gear reduction box and motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220891035U true CN220891035U (en) | 2024-05-03 |
Family
ID=90840532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322627024.7U Active CN220891035U (en) | 2023-09-26 | 2023-09-26 | Planetary gear reduction box and motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220891035U (en) |
-
2023
- 2023-09-26 CN CN202322627024.7U patent/CN220891035U/en active Active
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